> A wonderful book on Vertical Regulation is ... > "Vertical Regulation: A course of Study in the Regulation of Vertical > Pianos" which is published by and available through the PTG. > > Richard Cromwell Yes, it's very good. Also Bill Spurlock's article on Vertical Regulation. I think they're less than $5.00 - maybe only $2.00. I have and use both. John Formsma
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